Disk plow



Aug. 18, 1931.

S. B. HENDRICKS DI SK PLOW Original Filed July 23, 1927 Patented Aug.18, 1931 UNITED STATES PATENT OFFICE SIMEON B. HENDRICKS, F ROCKFORD,ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO J. I. CASE COMPANY, OFRACINE, WISCONSIN, A CORPORATION OF WTSOONSIN DISK PLOW Originalapplication filed July 23, 1927, Serial No. 207,911. Divided and thisapplication'filed May 3 1,

1928. Serial This invention relates to disk plows and is, in part, adivision of my application, Serial No. 207,911, filed July 23, 1927.

The principal object of the present invention lies in the provision ofcombination scrapers and trash guards to adapt a disk plow topracticallyany kind of plowing apt to be encountered. The bladesemployed in accordance with my invention are mounted on a longitudinalbar supported in parallelism with the gang of plow disks and arearranged to be disposed in either one of two positions accordingly as itis desired to use the same as scrapers or trash guards; in the firstcase, the blades are disposed in linewith the longitudinal bar so as tobear .against the sides of the plow disks, and in the other case theyare disposed transversely with respect to the longitudinal bar so as tostand in an intermediate position between the plow disklsl to preventthe choking of the disks with tras The invention is fully illustrated inthe accompanying drawings, wherein- Figure 1 is a fragmentary front viewof a part of a gang of plow disks showing my improved combinationscraper and trash guard blade in full lines in scraping position and indotted lines in guarding position;

Figs. 2 and 3 are enlarged sectional details of the blade mounting takenon the line 2-2 of Fig. 1, Fig. 2 showing the blade in scrapingposition, and Fig. 3 showing the blade in guarding position; and d Fig.1 is a transverse section through a gang of plow disks showing aslightly modified form of blade and mounting therefor.

Similar reference numerals are applied to corresponding parts throughoutthe views.

The plow in connection with which the present improvements are utilizedis of a heavy duty type, the construction of which is fully disclosed inthe parent application above referred to. Only so much of theconstruction is shown herein as is requisite for an understanding of thepresent invention. The plow disks shown at 5 are preferably provided ina gang of two separately assembled sections, as disclosed in the parentapplication, but for the present purpose these are provided with squarecenter holes 6 to V fit on the square shaft 7. with spacing spools 8,one of which is disposed between each pair of successive disks. The gangof plow disks is mounted on the frame so as to be drawn at an angle tothe line of draft in a manner well known in this art.

The disks 5, in the case of ordinary plowing, as, for example, inbreaking meadows or in oat field plowing, are arranged to be kept cleanby scraping blades. For other kinds of plowing as, for example, Wheat orcotton field plowing, or wherever high stubble, trash or weeds tend towind about the disks and onto the spools therebetween and choke thesame, the disks have to be guarded if the operation of the plow isto beeflicient.

In some instances, scraping blades and guards are both required at thesame time, but that is rarely necessary. According to the presentinvention Ichave, therefore, provided blades 10 for the disks 5, atleast one for each disk, arranged when set in one position to serve asscrapers and when set in another position to serve as guards. In Figs. 1and 2 the blades 10 are shown in position bearing against the sides ofthe disks 5 to act as scrapers, whereas in Fig. 3 the .blade is shown inthe guard position, the

guard position being likewise indicated in dotted lines in Fig. 1. Whenserving as guards the blades are disposed between adjoining disks. Theblades are mounted on a longitudinal bar 11 suitably supported on theframe of the plow, as, for example, by arms, one of which appears at 12.The bar 11 is disposed above and to the rear ofthe gang of plow disksand extends lengthwise with re spect to the gang, the same being trueof'the bar 11' shown in the modified or alternative form illustrated inFig. 4. The bar 11 is channel-shaped in cross-section, as clearlyappears in'Figs. 2 and 3, and is arranged for rotation in circularopenings 13 provided in the arms 12. A bracket 14:, having an opening 15therein conforming to the section of the bar 11, is received on the barand is ar- I ranged to be fastened to the arm 12 by a bolt 16 in eitherone of the two positions shown in Figs. 2 and 3, the bolt 16 beingreceived in either one of the openings 17 provided in the arm 12 and inan arcuate slot 18 provided in the bracket 14. The purpose for the slot18 will presently appear. IV hen the bar 11 is in the position shown inFig. 2, that is, with the longitudinal flanges thereof directed inwardlytoward the disks 5, the blades 10 are arranged to be secured theretowith their channel-shaped offset ends 20 fitting over the bar 11 inlongitudinalalignment therewith so that when the bolts 21 passingthrough the offset end portions of the blades 10 and through the bar 11are secured by the tightening of the nuts 22, the blades are heldagainst turning with reference to the bar and will remain in the properposition with respect to the plow disks against the sides of which theblades are arranged to bear in the manner indicated in full lines inFig. 1. At this point, it will be apparent that some slight adjustmentsof the blades 10 may be desired to perform the scraping operationefliciently.

For this reason, I prefer to provide the armate slot 18in the bracket14. lVhen the bolt 16 is loosened the bar 11 may be turned slightly toswing all of the blades 10 together with reference to the plow disks.When the proper position is reached the bolt 16 can be tightened to keepthe desired adjustment. If, however, the blades 10 are to be used asguards the bar 11 is turned from the position shown in Fig. 2 to thatshown in Fig. 3 and is secured in the latter position by the passing ofthe bolt 16 through the other hole 17 in the arm12. This throws thelongitudinal flanges of the bar 11 on the side away from the plow disksand the flat surface presented by the edges of the flanges provides aplace for bolting the-offset end portions of the blades to the bar, theoffset end portions of the blades in this case being disposedsubstantially in right angular relation to the bar as clearlyillustrated and as appears in dotted lines in Fig. 1. In this case, asin the other case, the slot 18 in the bracket 14 permits whateveradjustment in the position of the blades may be found necessary ordesirable.

Referring now to Fig. 4 for consideration of the modified or alternativeform of blade 10 and longitudinal bar 11 serving as the mountingtherefor, it will be observed that the barll is in the form of a pipeand that the bracket 14 is bolted or pinned thereto, as indicated at 24,to permit turning the same to different positions of angular adjustmentrelative to the supporting arms 12. A bolt 16 cooperates with an arcuateslot 18 to fasten the. bar, 11 in adjusted position similarly as in theother form. The offset end 20 of the blade 10 is struckto a trough formas appears from the dotted line position of the blade shown and will,therefore, fit snugly position, in which the offset end 20 is disposedsubstantially at right angles to the bar 11, the same is arranged toserve as a trash guard. The edges of the flanges of the offset end 20may be notched, as represented at 25, to form a seat for'th'e bar 11 andthus facilitate positioning the blade and-also prevent the turningthereof out of position when the bolt v21 is being tightened or after ithas been tightened. The bar 11 is preferably turned to a position whereall of the blades 10 have the free. ends thereof engagingthe spacers 8between the disks 5 so that there is less strain imposed on thebolts 21,the blades beingafforded ample support at both ends. Itwill be evidentthat this form of my invention presents an important advantage over theother form in that the bolts 21 need not be removed and replaced inshifting the blades from scraping position to guard position or vice.versa; all that it is necessary to do is to loosen the nuts 22 enough topermit the blades to be turned from one position to the other and thenretighten the same. Another point worthy of mention is that there is nonecessity for more than one bolt hole 17 in the arm 12 to which thebracket 14 is arranged to be bolted, the reason for this being that thebar 11 in this form ofthe invention does not haveto be turned completelyaround like the bar 11, sufficient angular adjustment is permitted byreason of the slot 18 when the blade is disposed in either of itstwooperative positions.

I claim:

1. In a disk plow, the-combination with a gang of plow disks mounted ona frame, of abar supported in parallelism with the gang of plow disks, aplurality of blades, one for eachof the disks of thegang, and means forfastening each of said blades at a-predetermined point on said barineither one of two positions, said blades having their attaching endsso constructed whereby in one position of attachment to have the bladesbear against the sides of the disks to act as scrapers, and in the otherposition of attachment have the bladesdisposed between adjoining disksin proper spaced relation thereto to serve as trash guards.

2. In a disk plow, the combination with a gang of plow disks mounted ona frame, of a single means arranged when setin one posi tion to serve toscrape the plow disks and arranged when set in anotherposition to serverei ns prising a bar extending longitudinally ofthe gang'of disks'andsubstantially in parallelism therewith, means for supporting said barpermittingthe turning thereof from one position to another, and aplurality of blades arranged to be fastened tosaid bar between the plowdisks, each of said blades having an a offset part for attachment to thebar, the said offset parts being disposed substantially at right anglesto the bar with the bar in one position when the blades serve as trashguards, and the said offset parts being arranged substantially inalignment with the bar whenthe bar is in its other position when theblades serve as scrapers,

, 3. In a disk plow, the combinationwith a gang of plow disks mounted ona frame, of a single means arranged when set in one position" to serveto scrape the plow disks and arranged when set in another positiontoserve as trash guards for the disks, said means comprising a barextending longitudinally of the gang disks and substantially inparallelism therewith, means for supporting said bar permitting theturning thereof from one position to another, means for fixing said barin either adjusted position, and a plurality H -v of blades arranged'tobe fastened to saidbar between the plow disks, each of said bladeshaving an offset part for attachment to the bar, the said offset partsbeing disposed substantially at right angles to the bar with the bar inone position when the blades serve as trash guards, and the said offsetpartsbeing arranged substantially in alignment with the bar when the baris in its other position when the blades serve as scrapers. Y

4. In a disk plow, the combination of a gang of plow disks, and a singlemeansarranged when set in one position to serve to scrape the plow disksand arranged when set in another position to serve as trash guards forthe disks, said means comprising a bar extending longitudinally withreference to the gang of plow disks and substantially in parallelismtherewith, the said bar having one side-thereof flat for the purpose ofattaching blades thereto, means for supporting said bar permitting theturning thereof to either oneof two operative positions so that the flatside is disposed toward the plow disks in the one position and away fromthe plow disks in the other position, means for fixing the baradjustably in either position, a plur ality of blades arranged to bemounted on said bar adjacent thepl'ow disks, there be ing at least oneblade for each disk, the said bladeshaving offset parts for attachmentto the flat side of the bar, the said offset parts being disposed inlongitudinal i alignment with. the bar against the flat, side thereofwhen the latter is inwardlydircted, in which case the-blades serve asscrapers and bear against the sides of the plow disks, and the saidoffset parts being disposed in approximately right angular relation tothe bar when the flat'side thereof-is away from the plow disks, in whichcase the blades are disposed at intermediate positions between the plowdisks so as to serve as trash guards, and means for fastening saidbladesto the bar in either position.

' 5. In a disk plow, the combination of a gang of plow disk-s, and asingle means arranged when set in one position to serve to scrape theplow disks and arranged when set in another position to serve as trashguards for the disks, said means comprising a bar extendinglongitudinally of the gang of plow disks and supported substantially inparallelism therewith, said bar being approximately channel-shaped incross-section,

a plurality of blades arranged to be mounted on said bar adjacent theplow disks, there being at least one blade for each disk, the bladeshaving ofiset parts for attachment to the bar, the said offset partsbeing channelshaped in cross-section so as to fit the bar in theoneoperative position of the blades with plow disks to serve as trashguards, means for fastening said blades to the bar in either position,said bar being supported for rotation on'its longitudinal axis wherebyto simultaneously adjust the relationship of all of the blades to all ofthe plow disks, and means for adjustably fixing the'bar in position;

6, In a disk plow, the combination with a gang of plow disks mounted ona frame, and

a plurality of blades adapted to cooperate with the plow disks to scrapethem or guard the same from trash, of a single bar supported inparallelism with a gang of plow disks on said frame and adapted to serveas a support for the said blades, said blades being adjustableangula-rly relative to the bar to trash guard or scraping position,and'said bar being arranged to be turned relative to the frame to adjustthe blades to trash guard or scraping position, and means for securingsaid bar in adjusted position.

7. In a disk plow, the combination with a gang of plow disks mounted ona frame in spaced relation, 7 and a plurality of blades adapted tocooperate with the plow disks to :5

scrape them orguard the same from trash, of a single bar supported inparallelismwith gang of plow disks on said frame and adaptedfto serve asa support for the said blades, said blades being each adjustablerelative to the bar at a point between adj oining disks to a position ina radial plane for guarding or a plane parallel to the axis of the disksfor scraping and said bar being arranged to be turned relative to theframe to adjust the blades to trash guard or scraping position, andmeans for securing said bar in adjusted position.

8. A disk plow as set forth in claim 7 wherein the last mentioned meanscomprises a bracket fixed on one end of the bar adjacent the bearing forsaid bar in said frame, said bracket being arranged to be turned todifferent positions to bring the bar to different positions, and a boltpassing through the bracket part and frame part at a certain radius withrespect to the bar to hold the bracket in adjusted position, the onepart having an arcuate slot to receive the bolt to permit adjustment ofone part relative to the other.

9. A plow as set forth in claim 7 wherein the last mentioned meanscomprises a bracket fixed on one end of said bar next to the bearing forsaid bar in said frame, said bracket being arranged to be turned fromone position through approximately 180 to another position tocorrespondingly adjust the bar, said bracket having an arcuate slotprovided therein at a certain radius with reference to the bar and saidframe having bolt holes provided therein at diametrically opposed pointswith reference to the bar, and a bolt arranged to be insertedinterchangeably through either bolt hole and through the arcuate slot inthe bracket to secure the latter in adjusted position. I V 10. In a diskplow, the combination with a'gang of plow disks mounted on a shaft, of abar supported in parallelism with the gang of plow disks, a plurality ofblades to serve as trash guards or scrapers each of said blades havingan offset part for attachment to the bar angularly adjustable relativeto the bar to make the blade assume a position in aradial plane forguarding or a plane parallel to the axis of the disk shaft for scraping,and means for adjusting the bar to position 7 the blade again-st oneside of the disk associated therewith for scraping the same or incontact-with the disk shaft for acting as a trash guard.

- '11. In a disk plow, the combination with a gang of plow disks mountedon a frame, of a bar supported in parallelism with the gang of plowdisks, a plurality of blades to'serve as trash guards or scrapers, eachblade having an offset end for attachment to the bar at a predeterminedpoint between two adjoining disks, and a single bolt for fastening eachof said blades by the offset end to the bar at the predetermined pointin either one of two positions, for disk scraping or trash guarding, theoffset end of the blade being properly formed so that in the scrapingposition of the blade the latter has its free end properly engaging thedisk associated therewith, the blade when turned to guarding positionbeing approximately midway between said disks and the next disk.

12. A structure as set forth in claim 11 wherein the bar is rotatablyadjustable to simultaneously adjust all of the blades relative to thedisks, the blades all being arranged to occupy one plane when inscraping position and another plane when in trash guarding position, andthe structure including means for securing the bar in adjusted position.

13. In a disk plow, the combination with a gang of plow disks mounted ona frame, of a bar supported in parallelism with the gang of plow disks,a plurality of blades to serve as trash guards or disk scrapers, each ofsaid 1 blades having an offset part for attachment to the bar, and meansat a predetermined point on the bar for fastening each of said blades tothe bar by its offset part with the offset part parallel to the bar ordisposed in transverse relation thereto, for scraping or trash guarding,respectively, the point of attachment on the bar being spaced withrelation to the disk associated with the blade and the angularity of theoffset part of the blade being such that when the offset part isfastened in parallelism with the bar the blade has scraping contact withthe disk and when the offset part is fastened to the bar in transverserelation thereto the blade is disposed approximately midway between theaforesaid disk and the next disk, said bar being rotatably adjustable tosimultaneously adjust all of the blades relative to the disks, theblades all being arranged to occupy one plane when in scraping positionand another plane when in trash guarding position, and means forsecuring the bar in adjusted position.

14:. In a disk plow, the combination of a gang of plow disks, and asingle means arranged when set in one position to serve to scrapetheplow disks and arranged when set in another position to serve as trashguards for the disks, said means comprising a bar extendinglongitudinally of the gang of plow disks and supported substantially inparallelism therewith said bar being approximately channel-shaped incross-section, a plurality of blades arranged to be mounted on said baradjacent the plow disks, there being at least one blade for each disk,the blades having offset parts for attachment to the bar, the saidoffset parts being formed so as to interfit with the channelcross-section of the bar when the offset parts are disposed inlongitudinal alignment with the bar, in which case the blades arearranged to serve as scrapers bearing against the sides of the plowdisks, the said offset parts being ar' ranged in another operativeposition of the blades to be disposed in approximately right angularrelationship to the bar, in which case the blades are disposed in anintermediate position between the plow disks to serve as trash guards,and means for fastening the blades to the bar.

15. In a disk plow, the combination with a gang of plow disks mounted ona frame, of a bar supported in parallelism with the gang of plow disks,a plurality of blades to serve as trash guards or scrapers, each of saidblades having an offset part for attachment to the bar, the offset partbeing provided with one portion arranged to fit on the bar when theoflset part is in alignment therewith and another portion arranged tofit on the bar when the offset part is at right angles thereto, forfastening the oflt'set parts of said blades to the bar.

In witness of the foregoing I aliix my signature.

SIMEON B. HENDRICKS.

CERTIFICATE OF CORRECTION.

Patent No. 1,819,292. Granted August 18, 1931, to

SIMEON B. HENDRICKS.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiringcorrection as follows: Page 3,time 24, claim 3, after the word "gang" insert the word of; page 5, line17, claim 15, before the word "for" insert the words and means; and thatthe said Letters Patent should be read with these corrections thereinthat the same may conform to the record of the case in the PatentOffice.

Signed and sealed this 6th day of October, A. I). 1931.

M. J. Moore, (Seal) Acting Commissioner of Patents.

